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Harold Calderon
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Harold Calderon

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Harold’s favorite books

Learning Python by Mark Lutz Modern Operating Systems by Andrew S. Tanenbaum Anthem by Ayn Rand A Game of Thrones by George R.R. Martin Battle Angel Alita Vol. 1 by Yukito Kishiro Alice’s Adventures in Wonderland / Through the Looking-Glass by Lewis Carroll The Two Towers by J.R.R. Tolkien The Return of the King by J.R.R. Tolkien The God Delusion by Richard Dawkins The Fellowship of the Ring by J.R.R. Tolkien Cien años de soledad by Gabriel García Márquez
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Behave: The Biolo...
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Jun 13, 2026 01:05AM
The Staff Enginee...
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by Tanya Reilly (Goodreads Author)
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— Mar 19, 2026 10:16AM

 
Mar 19, 2026 10:16AM
Building Applicat...
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Mar 19, 2026 10:15AM
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Harold’s Notes & Highlights

Book cover for The Sixth Extinction: An Unnatural History
The Sixth Extinction: An Unnatural History by Elizabeth Kolbert
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Tropical waters tend to be low in nutrients, like nitrogen and phosphorus, which are crucial to most forms of life. (This has to do with what’s called the thermal structure of the water column, and it’s why tropical waters are often so ...more
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Harold’s Quotes

Scott Jurek
“Wanting to be someone else is a waste of the person you are. —KURT COBAIN”
― Scott Jurek, Eat and Run: My Unlikely Journey to Ultramarathon Greatness
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Harold’s Groups

32144 Costa Rica — 566 members — last activity Jul 31, 2026 03:48PM
Grupo Oficial de Costa Rica
34146 SciFi and Fantasy eBook Club — 3797 members — last activity Oct 27, 2026 12:09PM
This is for those of us whose preferred format is the ebook ... So, Whether you're a Kindle, Nook, Sony, iPad, Google, or whatever person; come on in ...more

Harold’s Year In Books

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Harold’s 2025 Year in Books
Take a look at Harold’s Year in Books, including some fun facts about their reading.
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Favorite Genres

Comics, Fantasy, Fiction, Manga, Psychology, Science, Science fiction, Sports, and Young-adult


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